Institute of Theoretical Physics · Faculty of Mathematics and Physics, Charles University
Class. Quantum Grav. 21(0), 2537-2547 (2004)
We present and describe an exact solution of Einstein's equations which represents a snapping cosmic string in a vacuum background with a cosmological constant $\Lambda$. The snapping of the string generates an impulsive spherical gravitational wave which is a particular member of a known family of such waves. The global solution for all values of $\Lambda$ is presented in various metric forms and interpreted geometrically. It is shown to represent the limit of a family of sandwich type N Robinson-Trautman waves. It is also derived as a limit of the C-metric with $\Lambda$, in which the acceleration of the pair of black holes becomes unbounded while their masses are scaled to zero.
@article{UTF173,
author = {Podolský, J and Griffiths, J. B.},
title = {{A snapping cosmic string in a de Sitter or anti-de Sitter universe}},
journal = {Class. Quantum Grav.},
volume = {21},
number = {0},
pages = {2537-2547},
year = {2004},
doi = {10.1088/0264-9381/21/11/002},
eprint = {gr-qc/0403089},
archivePrefix = {arXiv},
url = {http://www.iop.org/EJ/article/0264-9381/21/11/002/cqg4\_11\_002.pdf},
}